Apulsoft apShaper v1.2.5 [WiN]

Harmonic distortion plugin, analog modelled waveshaping, deep modulation options

Overview
apulSoft apShaper is an audio effect plugin to add harmonic distortion to audio signals. It combines a waveshaper with three filter bands and various modulation options - two LFOs, two dynamics detectors (with sidechain option), and user-configurable knobs.

apShaper can simulate multiple types of distortion, including tape and tube saturation, wave folding, and analog bit crushing.

The three filter bands offer high-quality filtering without high-frequency squeezing. The variable-slope low-pass filter type provides smooth slopes not possible with traditional filtering - ideal to gently shape signals with large amounts of distortion applied. Multiple tone control filter types modelled after classic circuits allow classic bass/mid/treble tone shaping.

Distortion without digital artifacts
apShaper uses sophisticated algorithms to reduce the big problem of digital distortion - unwanted nonharmonic noise. It performs analog waveshaping using integration. The distortion is applied to a continuous model of the audio signal. This reduces digital artifacts more than traditional oversampling could, especially if the transfer curve is not smooth (hard clipping/wavefolding/bitcrushing).

Main Features

• Demo version! Download and try in demo mode.
• Five high-quality waveshaping engines: harmonic, tube, saturation, steps, wavefold.
• Extremely low aliasing.
• Three multi-type filters can be applied before and/or after waveshaping.
• Four types of guitar amp tone stack simulations included.
• Multiple types of saturation soft-knee: tape, classic, distortion, hyper and clip.
• The steps engine allows continous adjustments of the number of bits.
• The wavefold engine provides symmetrical and asymmetrical user-editable breakpoints.
• The variable-slope low-pass filter type is ideal to use with harmonic distortion products.
• The direct channel can be independently filtered and dry/wet mixed with the shaped sound.
• Graphical editing of filter parameters on the spectrum display.
• Zoomable frequency spectrum and f0-synced waveform displays.
• Built-in input/output meters.
• dc offset removal filter.
• Modulation system with up to 16 modulation rules with independent gains.
• Internal modulation sources: two LFOs, two dynamics detectors and three user-definable knobs.
• Side-chain input for the dynamics detector.
• Midi input using the modulation system.
• A low processing latency of 6 samples (minimal phase mode) allows real-time performance.
• Unlimited undo/redo for all actions.
• Plugin formats: AudioUnits/AAX/VST/VST3 on macOS (intel/arm 64-bit) and Windows (32/64-bit intel)
• Built-in system-wide preset management with import and export of preset files, compatible across platforms and hosts using a xml file format.
• Bright & dark color schemes and support for user defined color schemes.

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